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M97 - The Owl Nebula in Ursa Major

Technical card

Imaging telescope or lens: Planewave CDK 12,5'' 12.5 CDK

Imaging camera: QSI 683 wsg-8 QSI

Mount: apt1200gto AP1200

Guiding telescope or lens: Planewave CDK 12,5'' 12.5 CDK

Guiding camera: QSI 683 wsg-8 QSI

Software: CCD Autopilot 5

Resolution: 2498x1661

Dates: March 15, 2015

Frames: 32x600"

Integration: 5.3 hours

Avg. Moon age: 23.44 days

Avg. Moon phase: 36.41%

Astrometry.net job: 1509101

RA center: 168.694 degrees

DEC center: 55.017 degrees

Pixel scale: 0.438 arcsec/pixel

Orientation: 74.944 degrees

Field radius: 0.183 degrees

Locations: ImagingInfinity Observatory, Bethune, SC, United States

Description

Messier Object #97 (M97), otherwise known as the "Owl Nebula" in the constellation Ursa Major. It is an object known as a "planetary nebula", which gets its name from the fact that through a telescope, the round shape of these nebulae appear similar to planets (but much larger). It was discovered in 1781 by the French astronomer Pierre Mechain who's drawing of it resembled an owl's head with its two large eyes. The name stuck and it is still known today as the Owl Nebula. It gets its shape from the expanding cloud of gas blown off by its central star some 8000 years ago. M97 lies at a distance of just over 2000 light years.

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Hap Griffin
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M97 - The Owl Nebula in Ursa Major, Hap Griffin